Generating a red image using Rust. Simple demo of Rust program flow.

red_image.rs

extern crate image;

use std::fs::File;
use std::path::Path;

fn main(){
    let image_size = 300;
    let mut image_buf = image::ImageBuffer::new(image_size, image_size);
    let red = [255, 0, 0];

    for (_, _, pixel) in image_buf.enumerate_pixels_mut(){
        *pixel = image::Rgb(red);
    }

    let img_path = Path::new("red.png");
    let ref mut img_file = File::create(&img_path).unwrap();

    let _ = image::ImageRgb8(image_buf).save(img_file, image::PNG);
}